/*-------------------------------------------------------------------------
 *
 * keywords.h
 *      lexical token lookup for key words in PostgreSQL
 *
 *
 * Portions Copyright (c) 1996-2017, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
 * src/include/common/keywords.h
 *
 *-------------------------------------------------------------------------
 */
#ifndef KEYWORDS_H
#define KEYWORDS_H

/* Keyword categories --- should match lists in gram.y */
#define UNRESERVED_KEYWORD        0
#define COL_NAME_KEYWORD        1
#define TYPE_FUNC_NAME_KEYWORD    2
#define RESERVED_KEYWORD        3


typedef struct ScanKeyword
{
    const char *name;            /* in lower case */
    int16        value;            /* grammar's token code */
    int16        category;        /* see codes above */
} ScanKeyword;

#ifndef FRONTEND
extern PGDLLIMPORT const ScanKeyword ScanKeywords[];
extern PGDLLIMPORT const int NumScanKeywords;
#else
extern const ScanKeyword ScanKeywords[];
extern const int NumScanKeywords;
#endif


extern const ScanKeyword *ScanKeywordLookup(const char *text,
                  const ScanKeyword *keywords,
                  int num_keywords);

#endif                            /* KEYWORDS_H */
